Specna Arms SA-K02 Assault Rifle AEG

Specna Arms
Code: …
£239.99
  • Ambidextrous
  • Quick Change Spring
  • Aluminium, Zinc & Steel

A Zinc and Aluminium Alloy constructed replica of the world-famous M4A4 platform, featuring a four-point RIS handguard, Anodised externals, quick change spring and uprated externals, all in a fully-ambidextrous platform for left and right handed users.

Full description

Help
Size guide

Description

This Airsoft Electric Gun is made by Specna Arms to their well-established level of quality, and is a replica of the world-famous M4A4 platform which is instantly recognisable, and has been reworked so often in the Airsoft world that they are incredibly good at making replicas in this shape now. The externals are made from a combination of Aluminium and Zinc Alloys which are Anodised to protect against corrosion, and undergo a course of sandblasting and powder coating to create a smooth and unrivaled finish. The external trim parts of the rifle such as screws, pins and sling points are made from Steel for long life and tough performance. The entire rifle is put together to a very high standard and does not have any wobble, making for a pleasant shooting experience.

The front of the rifle features 14mm CCW threaded outer barrel hidden underneath a traditional birdcage style flash hider, which is ready to take compatible suppressors and other muzzle devices.  The rail system is a four-point 20mm RIS handguard, which is made of sturdy materials, features gorgeous rail slot markings and is ready for any RIS compatible accessories you may have. The gas tube and lower heatshield are visible through the handguard which looks amazing. The top of the receiver also features a 20mm rail for your optics/sights, and comes with a set of Alloy flip-up ironsights already installed on the rail which are fully adjustable, and ready for action out of the box. At the rear of the replica you will find an ambidextrous sling plate which will allow the connection of a sling from either side of the rifle, making this a great choice for left handed players. The six-position sliding Crane Stock at the rear is where the battery is housed, and features a Mini Tamiya connection for compatibility with most batteries. The stock is easy to access, allows for multiple length adjustments and has a large amount of battery space for Crane Stock style batteries. The controls on the receiver are all entirely ambidextrous also, which makes controlling this RIF very easy for both left and right handed players. The magazine release, fire selector and sling plate can all be accessed from both sides of the replica.

The Specna Arms SA-K02 features the Enter & Convert™ quick change spring system, which makes changing the output power of your replica very easy once the gearbox is removed from the body. Simply remove the spring guide from the rear of the gearbox to access the main spring and make quick power adjustments.

If you want a replica of one of the worlds' most successful Assault Rifles, which is built to an eye-wateringly high standard and features a world of up-rated internal parts, then look no further than the SA-K02.

Features

  • Made by Specna Arms
  • Aluminium & Zinc Alloy
  • Enter & Convert™
  • Quick change spring
  • 14mm CCW thread
  • Four-point RIS handguard
  • Railed 20mm receiver
  • Numbered rail slots
  • Fully ambidextrous
  • Tough constructed
  • Anodised metals
  • Powder coated / Sand blasted
  • Six position Crane Stock
  • Rear wired
  • V2 gearbox
  • Thick rubber butt
  • Adjustable iron sights
  • Metal HOP chamber
  • Steel Gears
  • Steel Spring Guide
  • Aluminium sealed Piston Head
  • Alloy Cylinder Head
  • Metal sealed Nozzle
  • Ambidextrous fire selector
  • Ambidextrous mag release
  • Ambidextrous sling plate
  • Markings:
    • MARINE ENV. M-4
    • USMC Logo
    • 5.56MM NATO
    • P1TR0LB4S3

Package Includes

  • SA-K02 Assault Rifle AEG
  • 300rnd High Cap Mag
  • Sticker Set
  • Manual

Special Instructions

The externals of the replica are metal where they would be on the real world gun. This includes things like the outer barrel, handguard, and receiver. If a real world gun has polymer parts then the gun will still be marked as full metal externals, examples of this would be an M4, where the Stock and Pistol grip are always made from Polymer.

Specification

General

Weapon Construction External
 Weapon Type
Assault Rifle
Over 18 Only Icon
 Over 18
Yes
Icon UKARA - United Kingdom Airsoft Retailer Association
 Defence / UKARA Required
Yes, No,
FPS Icon
 FPS (Feet Per Second), using 0.20g BB
Approx. 320fps ± 10%, using 0.20g BB
Site Legal Icon
 Site Legal, using 0.20g BB
Yes
Screwdriver Icon
 Pre-Built
Yes
Package
 Included Items
  • Magazine
  • Stickers
Skill Level Icon
 User Skill Level
Regular Player

Weight and Dimension

Weight KG Icon
 Weight (KG)
Approx. 2.8kg
Weapon Length Collapsed
 Length (Collapsed)
80.5cm
Weapon Length Extended
 Length (Extended)
89cm

Construction

Colour Wheel Greyscale
 Primary Colour
Black
Two Tone Icon
 Pre Two-Toned
No
Construction Icon
 Construction
Zinc and Aluminium Alloy, Steel & Polymer
Weapon Construction External
 External Construction
Polymer
Alloy
Aluminium
Zinc
Gearbox Icon
 Internal Construction
Polymer
Alloy

Weapon Specific

Power Source Icon
 Powered By
Electric
Blowback Icon
 Blowback
None
Weapon Platform
AR, M4 / AR-15 / M16,
Magazine Style Icon
 Magazine Style
STANAG, M4 / AR Platform,
Fire Select Icon
 Fire Selector
PatrolBase | Fire Select Safe
 Safe
Patrol Base | Fire Select - Semi Automatic
 Semi Automatic
Patrol Base | Full Automatic
 Full Automatic
Weapon Safety Features Icon
 Safety Features
Trigger Lock
Shooter Configuration Icon
 Shooter Configuration
Ambidextrous
Weapon Configuration Icon
 Weapon Configuration
Standard
Weapon Scale Icon
 Weapon Scale
1:1
Suggested BB Weight
0.25g

Hop-Up

Hop-Up Unit Icon
 Hop-Up Unit
Yes
Hop-Up Unit Adjuster Icon
 Hop-Up Adjuster
Gear
Hop-Up Unit Location Icon
 Hop-Up Location
Behind Mock Bolt Cover, when Charging Handle Pulled to the Rear.

Furniture

Weapon Furniture Icon
 Furniture
  • Railed Handguard
  • Railed Receiver
  • Ambidextrous Magazine Release
  • Sliding Stock
  • Ambidextrous Fire Selector
  • Threaded Outer Barrel
  • Ambidextrous Sling Plate
Rail System Icon
 Rail System
20mm RIS / RAS
Icon Stock Positions
 Stock Setting
Sliding
Weapon Length Extended
 Stock Positions
6 Position
Sight Type Icon
 Sight Type
Iron Sights
Sling Plate Icon
 Sling Options
Buffer Plate

Barrel

Icon Thread Type
 Outer Barrel Thread Type
Male
Icon Thread Direction
 Outer Barrel Thread Direction
CCW (Counter Clockwise)
Outer Barrel Thread Size
14mm

Magazine Specific

Magazine Type
High Capacity, AEG,
Magazine BB Capacity
Approx. 300 Rounds
Magazine BB Fill Method
Fill Window
Magazine BB Fill Location
Top

Electric Gun Specific Information

Gearbox
Gearbox Icon
 Gearbox Version
V2 Gearbox
Wiring Icon
 Gearbox Wiring
Rear Wired
Spring Change Icon
 Gearbox Quick Change Spring
Yes
Battery Specific
Battery Connector
Patrol Base | Icon | Mini Tamiya
 Mini Tamiya
Compatible Battery
Compatible Battery Type
Li-Po
Compatible Battery Configuration
Crane
Compatible Battery Voltage
7.4v

Product Testing Data

Notepad Icon
 Test Description
300FPS
Notepad Icon
 Tested Using
ASG Blaster 0.20g BBs
Notepad Icon
 Test Date
21/05/19

Detailed Power Tests

FPS
FPS, using 0.20g BB
Approx. 320fps, using 0.20g BB

Size guide

Joule Charts

Special Instructions

These table can be used as a reference to see if the BB weight you are using will be over acceptable Joulage limits at some Airsoft Sites in the UK. To check if the weight can be used chrono your weapon using the BB you intend to use, and then compare it to the chart.

FPS, Power and Joule Limits can vary from site to site, so please get in touch with where you're going to play with in advance to avoid disappointment.

Suggested limits are based on Joulage Limit rules used Halo Mill: Proving Grounds, with a 350fps limit for Automatic Replicas, 400fps for Semi-Automatic Replicas, and 500fps for Bolt Action Replicas.

Tap the tabs below to open the relevant chart for your replica.

Suggested limits are based on Joulage Limit rules used Halo Mill: Proving Grounds, and is the equivalent of 350fps, using 0.20g BB resulting in an upper limit of 1.14j.

Velocity BB Weight (Grams)
FPS 0.20 0.25 0.28 0.30 0.32 0.36 0.40 0.43 0.45 0.50
250 0.58 0.73 0.81 0.87 0.93 1.05 1.16 1.25 1.31 1.45
260 0.63 0.79 0.88 0.94 1.00 1.13 1.26 1.35 1.41 1.57
270 0.68 0.85 0.95 1.02 1.08 1.22 1.35 1.46 1.52 1.69
280 0.73 0.91 1.02 1.09 1.17 1.31 1.46 1.57 1.64 1.82
290 0.78 0.98 1.09 1.17 1.25 1.41 1.56 1.68 1.76 1.95
300 0.84 1.05 1.17 1.25 1.34 1.51 1.67 1.80 1.88 2.09
310 0.89 1.12 1.25 1.34 1.43 1.61 1.79 1.92 2.01 2.23
320 0.95 1.19 1.33 1.43 1.52 1.71 1.90 2.05 2.14 2.38
325 0.98 1.23 1.37 1.47 1.57 1.77 1.96 2.11 2.21 2.45
328 1.00 1.25 1.40 1.50 1.60 1.80 2.00 2.15 2.25 2.50
330 1.01 1.26 1.42 1.52 1.62 1.82 2.02 2.18 2.28 2.53
335 1.04 1.30 1.46 1.56 1.67 1.88 2.09 2.24 2.35 2.61
340 1.07 1.34 1.50 1.61 1.72 1.93 2.15 2.31 2.42 2.68
345 1.11 1.38 1.55 1.66 1.77 1.99 2.21 2.38 2.49 2.76
350 1.14 1.42 1.59 1.71 1.82 2.05 2.28 2.45 2.56 2.85
355 1.17 1.46 1.64 1.76 1.87 2.11 2.34 2.52 2.63 2.93
360 1.20 1.51 1.69 1.81 1.93 2.17 2.41 2.59 2.71 3.01

Suggested limits are based on Joulage Limit rules used at Halo Mill: Proving Grounds, and is the equivalent of 400fps, using 0.20g BB resulting in an upper limit of 1.49j.

Velocity BB Weight (Grams)
FPS 0.20 0.25 0.28 0.30 0.32 0.36 0.40 0.43 0.45 0.50
250 0.58 0.73 0.81 0.87 0.93 1.05 1.16 1.25 1.31 1.45
260 0.63 0.79 0.88 0.94 1.00 1.13 1.26 1.35 1.41 1.57
270 0.68 0.85 0.95 1.02 1.08 1.22 1.35 1.46 1.52 1.69
280 0.73 0.91 1.02 1.09 1.17 1.31 1.46 1.57 1.64 1.82
290 0.78 0.98 1.09 1.17 1.25 1.41 1.56 1.68 1.76 1.95
300 0.84 1.05 1.17 1.25 1.34 1.51 1.67 1.80 1.88 2.09
310 0.89 1.12 1.25 1.34 1.43 1.61 1.79 1.92 2.01 2.23
320 0.95 1.19 1.33 1.43 1.52 1.71 1.90 2.05 2.14 2.38
330 1.01 1.26 1.42 1.52 1.62 1.82 2.02 2.18 2.28 2.53
340 1.07 1.34 1.50 1.61 1.72 1.93 2.15 2.31 2.42 2.68
350 1.14 1.42 1.59 1.71 1.82 2.05 2.28 2.45 2.56 2.85
360 1.20 1.51 1.69 1.81 1.93 2.17 2.41 2.59 2.71 3.01
370 1.27 1.59 1.78 1.91 2.03 2.29 2.54 2.73 2.86 3.18
380 1.34 1.68 1.88 2.01 2.15 2.41 2.68 2.88 3.02 3.35
390 1.41 1.77 1.98 2.12 2.26 2.54 2.83 3.04 3.18 3.53
400 1.49 1.86 2.08 2.23 2.38 2.68 2.97 3.20 3.34 3.72
410 1.56 1.95 2.19 2.34 2.50 2.81 3.12 3.36 3.51 3.90

Suggested limits are based on Joulage Limit rules used at Halo Mill: Proving Grounds, and is the equivalent of 500fps, using 0.20g BB resulting in an upper limit of 2.32j.

Velocity BB Weight (Grams)
FPS 0.20 0.25 0.28 0.30 0.32 0.36 0.40 0.43 0.45 0.50
250 0.58 0.73 0.81 0.87 0.93 1.05 1.16 1.25 1.31 1.45
260 0.63 0.79 0.88 0.94 1.00 1.13 1.26 1.35 1.41 1.57
270 0.68 0.85 0.95 1.02 1.08 1.22 1.35 1.46 1.52 1.69
280 0.73 0.91 1.02 1.09 1.17 1.31 1.46 1.57 1.64 1.82
290 0.78 0.98 1.09 1.17 1.25 1.41 1.56 1.68 1.76 1.95
300 0.84 1.05 1.17 1.25 1.34 1.51 1.67 1.80 1.88 2.09
310 0.89 1.12 1.25 1.34 1.43 1.61 1.79 1.92 2.01 2.23
320 0.95 1.19 1.33 1.43 1.52 1.71 1.90 2.05 2.14 2.38
330 1.01 1.26 1.42 1.52 1.62 1.82 2.02 2.18 2.28 2.53
340 1.07 1.34 1.50 1.61 1.72 1.93 2.15 2.31 2.42 2.68
350 1.14 1.42 1.59 1.71 1.82 2.05 2.28 2.45 2.56 2.85
360 1.20 1.51 1.69 1.81 1.93 2.17 2.41 2.59 2.71 3.01
370 1.27 1.59 1.78 1.91 2.03 2.29 2.54 2.73 2.86 3.18
380 1.34 1.68 1.88 2.01 2.15 2.41 2.68 2.88 3.02 3.35
390 1.41 1.77 1.98 2.12 2.26 2.54 2.83 3.04 3.18 3.53
400 1.49 1.86 2.08 2.23 2.38 2.68 2.97 3.20 3.34 3.72
410 1.56 1.95 2.19 2.34 2.50 2.81 3.12 3.36 3.51 3.90
420 1.64 2.05 2.29 2.46 2.62 2.95 3.28 3.52 3.69 4.10
430 1.72 2.15 2.40 2.58 2.75 3.09 3.44 3.69 3.86 4.29
440 1.80 2.25 2.52 2.70 2.88 3.24 3.60 3.87 4.05 4.50
450 1.88 2.35 2.63 2.82 3.01 3.39 3.76 4.04 4.23 4.70
460 1.97 2.46 2.75 2.95 3.15 3.54 3.93 4.23 4.42 4.91
470 2.05 2.57 2.87 3.08 3.28 3.69 4.10 4.41 4.62 5.13
480 2.14 2.68 3.00 3.21 3.42 3.85 4.28 4.60 4.82 5.35
490 2.23 2.79 3.12 3.35 3.57 4.02 4.46 4.80 5.02 5.58
500 2.32 2.90 3.25 3.48 3.72 4.18 4.65 4.99 5.23 5.81
510 2.42 3.02 3.38 3.62 3.87 4.35 4.83 5.20 5.44 6.04